Ingredients
2 pounds neck bones (Or any other cheap bone-in beef product like tail)
2 split marrow bones (Optional)
2 Tbs Oil
1 Tbs Tomato paste
I Onion, quartered with skin
2 carrots broken into pieces
1 celery stick
2 cloves garlic, crushed with skin
10 peppercorns
48 ounces water
Preparation
Preheat oven to 450° F.
Dry the neck bones and marrow bones off with a paper towel and lightly coat with oil. Lay the beef on a sheet pan. Roast bones in the oven, rotating with tongs every 15 minutes until brown on all sides. About 45 minutes total.
Move the beef to the bottom of your stockpot and add a few splashes of your measured water to the sheet pan. Using a wooden spatula, scrape the stuck-on bits with the water to dissolve and add it to the stockpot. Add the remaining ingredients and transfer pot to the stove. Weigh down your bones and vegetables with an inverted steamer basket. I actually used to have a clean smooth rock I would place on top to really keep things submerged.
Bring to a boil on high heat then reduce heat to a bare simmer for 8-10 hours. If it looks like you are losing a lot of volume from evaporation, add some boiling water back to the original fill line.
Using a slotted spoon, transfer the vegetables to a bowl and squeeze out as much liquid as you can back into the stockpot. Discard vegetable solids. Use the slotted spoon to remove the beef bones and transfer them to your now empty bowl used for the vegetables. Set aside.
Strain the stock into a handkerchief lined sieve over a large heat proof container.
For the Remouillage:
Add the beef bones back into the stockpot and press them down to get them as flat and tightly packed as possible. Add just enough water to cover the bones by 1 inch of water. Return to the stovetop and bring to a boil over high heat and reduce to a bare simmer for 6-8 hours. Once again, watch for evaporation and add boiling water as needed. You only need to keep the bones barely covered in water.
Strain as before, discarding the beef bones. The Remouillage can be used as is or it can be added to the original stock to increase total volume.